I made the decision to stop trying to run... it really makes my hip/back worse. It's killing me to do this, but when the back starts affecting my riding, I have to do something. I console myself with the fact that I can walk a 14-15 mile mile and it gives me something different to do on my "rest" days from riding.
I never thought I would like running so much, since I am slow, but I have to preserve my old body.